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prior to use The sample probe and filters are cleaned In TSP solution and rinsed with methyl <br /> alcohol followed by a distilled water rinse prior to use New, factory-sterilized syringe needles, <br /> O-rings, septums and sample tubes are used for each sample <br /> B-2.6 Sample Handling <br /> After labeling, the sample is immediately stored in an iced cooler for transport to Kleinfelder's <br /> office sample control or to the analytical laboratory A Kleinfelder chain-of-custody form <br /> accompanies the cooler The chain-of-custody form includes Kleinfelder's name, address and <br /> telephone number, the employee number of the individual who performed the sampling, the <br /> sample numbers, the date and time the samples were collected, the number of containers each <br /> sample occupies, the sample matrix (soil or water) and the analyses for which the samples are <br /> being submitted, if any The chain-of-custody farm is signed by each person who handles the <br /> samples, including all Kleinfelder employees and the receiving employee of office sample <br /> control or the analytical laboratory when the samples are delivered <br /> B-2.7 Decontamination of Equipment <br /> To reduce the potential for cross-contamination, augers and associated equipment are steam <br /> cleaned prior to drilling each boring In addition, sampling equipment is cleaned with a <br /> Itnsod'um phosphate or non-phosphate detergent wash and rinsed with distilled water prior to <br /> collecting each soil sample <br /> B-2 8 Soil Boring Closure and Cutting Disposal <br />' Soil borings are closed immediately after the collection and logging of soil samples Closure is <br /> accomplished by grouting the boring with a cement/bentonite slurry or as otherwise required <br /> Drill cuttings will be placed in 55-gallon drums wrapped in plastic or spread around the boring <br /> and left on site for disposal by the site owner If requested, Kleinfelder can coordinate disposal <br /> of soil and water after analytical results are available <br /> B-3 GROUNDWATER WELL INSTALLATION <br /> 1 B-3 I Monitoring Well Construction <br />' Construction details for shallow groundwater monitoring wells are as follows <br /> • The well casing are 2- or 4-inch inside diameter, flush threaded point, schedule 40 PVC pipe <br /> • The wells are constructed in 8- or 10-inch diameter borings <br /> • Well screen sections are perforated with 0 010- or 0 020-inch factory-cut slots <br /> Page B-3 <br /> 20-1417-16 E02/2000R578 Pa g <br /> 02000 Klcinfelder, Inc July 28,2000 <br /> KI I INi f I I)1 R ' j2,) Nil rtlt Slitt I ,tore ktor ( A 1)-)20-, 1791 (2 01)) `)48 1 i I t (209) 946 iir,21 t IN <br />